# SDR AALA20170120001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 19, 2017
- Submitted: January 23, 2017
- Operation: Air carrier
- Aircraft: N984TW
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53634
- Aircraft time: 47,396 hours, 23,811 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Clamp
- Condition: Broken
- Location: Zone 200
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20170120001

## Discrepancy

AIRCRAFT WAS GROUNDED. EMERGENCY DECLARED. DFW-COS FLIGHT RETURNED TO DFW ACCOUNT TAIL COMPARTMENT OVERHEAT INDICATION. LANDING UNEVENTFUL. REMOVED AND REPLACED AIR CONDITIONING FLOW CONTROL VALVE CLAMP IAW AMM 21-31-02. LEAK AND OPERATIONAL CHECK GOOD. (CLOSED)

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